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W77M032A Datasheet(PDF) 3 Page - Winbond |
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W77M032A Datasheet(HTML) 3 Page - Winbond |
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3 / 76 page  W77L32/W77L032A/W77M032A Publication Release Date: February 1, 2007 - 3 - Revision A5 1. GENERAL DESCRIPTION The W77L032 is a fast 8051 compatible microcontroller with a redesigned processor core without wasted clock and memory cycles. As a result, it executes every 8051 instruction faster than the original 8051 for the same crystal speed. Typically, the instruction executing time of W77L032 is 1.5 to 3 times faster then that of traditional 8051, depending on the type of instruction. In general, the overall performance is about 2.5 times better than the original for the same crystal speed. Giving the same throughput with lower clock speed, power consumption has been improved. Consequently, the W77L032 is a fully static CMOS design; it can also be operated at a lower crystal clock. W77L032 support on-chip 1KB SRAM without external memory component and glue logic, saving more I/O pins for users application usage if they use on-chip SRAM instead of external SRAM. 2. FEATURES 8-bit CMOS microcontroller High speed architecture of 4 clocks/machine cycle runs up to 20MHz Pin compatible with standard 80C52 Instruction-set compatible with MCS-51 Four 8-bit I/O Ports One extra 4-bit I/O port and Wait State control signal (available on 44-pin PLCC/QFP package) Three 16-bit Timers 12 interrupt sources with two levels of priority On-chip oscillator and clock circuitry Two enhanced full duplex serial ports 256 bytes scratch-pad RAM 1KB on-chip SRAM for MOVX instruction Programmable Watchdog Timer Dual 16-bit Data Pointers Software programmable access cycle to external RAM/peripherals Packages: − Lead Free (RoHS) DIP 40: W77L032A25DL, W77M032A25DL − Lead Free (RoHS) PLCC 44: W77L032A25PL, W77M032A25PL − Lead Free (RoHS) PQFP 44: W77L032A25FL, W77M032A25FL |
Similar Part No. - W77M032A |
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Similar Description - W77M032A |
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